31878

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:49

約数の個数: 48

約数和(自身を含む): 89856

約数和(自身を除く): 57978

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 23, 33, 42, 46, 63, 66, 69, 77, 99, 126, 138, 154, 161, 198, 207, 231, 253, 322, 414, 462, 483, 506, 693, 759, 966, 1386, 1449, 1518, 1771, 2277, 2898, 3542, 4554, 5313, 10626, 15939, 31878]

約数ペア:

[(1, 31878), (2, 15939), (3, 10626), (6, 5313), (7, 4554), (9, 3542), (11, 2898), (14, 2277), (18, 1771), (21, 1518), (22, 1449), (23, 1386), (33, 966), (42, 759), (46, 693), (63, 506), (66, 483), (69, 462), (77, 414), (99, 322), (126, 253), (138, 231), (154, 207), (161, 198)]